Enrique Alfredo Olaya Herrera (Guateque, November 12, 1880-Rome, February 18, 1937) was a Colombian journalist, lawyer, diplomat and politician, member of the Colombian Liberal Party. He was president of Colombia between 1930 and 1934, being the first Liberal to hold office after the long stay of the Conservatives in power, a period known as the Conservative Hegemony. Enrique Olaya Herrera became president representing a bipartisan coalition known as the National Concentration. He belonged to a liberal family and as such participated in the Thousand Days War.